The localization of damage variable (rate) is investigated.
研究了损伤变量(率)的局部化特征。
Local damage variable increases as flow tensile stress acting on the band decreases.
随着流动拉应力降低,局部损伤变量增加。
The concept of damage variable is extended from material to members and structures in the paper.
将损伤变量的概念从材料领域拓展到结构中,并用其作为损伤因子来表征结构的损伤程度。
In this paper according to the concept of bending damage of baseplate, the bending damage variable is defined.
本文从基础板弯曲损伤概念出发引出弯曲损伤变量。
For damage variable, the change is relatively smooth at beginning, and the change rate obviously speeds up at ending.
损伤变量在初期变化相对平缓,在后期变化速率明显加快。
The influences of softening modulus and elastic modulus on local damage variable rate depend on the flow stress level.
降模量及弹性模量对局部损伤变量率的影响取决于流动应力的大小。
Elastic shear strain in shear band was dependent on shear elastic modulus, damage variable and residual shear modulus.
考虑刚度劣化后,剪切带的弹性应变由弹性剪切模量、损伤变量及残余剪切模量确定。
Concrete damage process may be divided into several stages, and the method of extracting the damage variable was proposed.
将混凝土材料的损伤过程进行了分段,提出了损伤变量的提取方法。
The concrete damage process is divided into several sections, and the method of extracting the damage variable is proposed.
将混凝土材料的损伤过程进行了分段,提出了损伤变量的提取方法。
The main classic fatigue cumulative damage theories and the representative definitions of damage variable have been introduced briefly.
简要介绍了经典的疲劳累积损伤理论和几个典型的损伤变量定义式。
It is concluded that the final collapse of the structure is decided by the rupture strain that is deduced from the critical damage variable.
准则表明最终的结构破裂取决于与临界损伤变量密切相关的断裂应变。
A crack damage variable based on the CT data was defined and its relationship with the accumulated drying volume change of soil was analyzed.
定义了基于CT数据的裂隙损伤变量,分析了裂隙损伤变量随累计干缩体变的变化规律。
Based on non-local theory, the damage variable is non-local variable and is dependent on local damage variable and its second spatial gradient.
基于非局部理论,将损伤变量作为非局部变量,它与局部损伤变量及其二阶梯度有关。
The results show that the fatigue damage variable of pearlite ductile cast iron as a function of fatigue cycle varies according to the index law.
结果表明:球墨铸铁的疲劳损伤变量随疲劳周数呈指数规律变化;
Above all, a statistical damage variable is defined, a damage evolutional equation and constitutive equation based on CT number are developed, too.
基于上述研究和获取资料,根据定义的统计损伤变量,建立了一个基于CT数的损伤演化方程和本构方程。
A two damage variable creep constitutive model has been presented for the strength and life of nickel base single crystal superalloy turbine blades.
本文提出双参数蠕变损伤模型用以模拟镍基单晶合金叶片的强度和寿命。
The relationship between acoustic emission (AE) parameters and damage variable is obtained by applying the damage theory and microelement statistical strength theory.
由损伤力学理论与微元强度统计理论,得到了岩石声发射参数与损伤参量的关系。
The variation rule of the damage variable and the coupled variable, damage energy dissipation rate, can be described on macro aspect by the damage evolution equation.
采用损伤演化方程可以从宏观上描述损伤变量以及与其相伴的广义热力学力——损伤能量释放率的变化规律。
The model about the relationship among AE parameters, damage variable and strain is derived by applying the damage theory and micro-element statistical strength theory.
本文运用损伤理论和微元强度统计理论导出了声发射参数与损伤参量及应变的关系模型。
By introducing a damage variable expressed by the equivalent shear stiffness, a dynamic shearing damage constitutive model of rock is established including three phases.
定义了用等效剪切刚度表示的损伤变量,建立了一个分三阶段表述的岩石动态剪切损伤本构模型。
According to damage mechanical analysis, the soil body damage level increases with increasing of water content of soil and a catastrophe point of damage variable exists.
引入损伤力学理论对不同含水量土体的损伤影响分析说明,随含水量增大,土体损伤程度加强,并存在损伤变量突变点。
Erosion damage decreases rock load area, after defining damage variable, the damage stress in rock can be calculated by the method bring forward by Lemaitre conveniently.
水化损伤劣化了岩体的力学性能和承载能力,直接减小了岩体的有效承载面积,定义了损伤变量后,损伤应力可采用应变等效的方法进行计算。
From the beginning of the definition of the damage variable, the definition methods of damage variable and their according damage models based on micro - and macro-theory.
文章从损伤变量定义的方法入手,讨论了基于宏微观理论的损伤变量定义方法及其相应的损伤模型。
The damage variable is defined as the residual strain of concrete under constant amplitude fatigue loading, and the law of cumulative damage and its evolution are obtained.
由等幅疲劳残余应变,定义了损伤变量,得到了相应的损伤积累和演化规律。
Based on the variety of void ratio, computational formulation of chemical damage variable is set up, and the calculation method of damage measurement parameter is put forward.
并以空隙率的变化为基础,建立了化学腐蚀下岩石细观结构化学损伤变量计算公式,给出了损伤测量参数的计算方法。
Assuming distribution statistical probability of micro-units strength, statistical damage variable is defined; and the statistical damage constitutive equation is proposed under triaxial.
假定软岩微元强度分布统计概率,定义软岩的统计损伤变量,依据统一强度理论建立三轴应力状态下软岩的损伤统计本构模型。
The evolution curve show known that fractal dimension and damage variable present nonlinear increase with the increment of stress, and the change of fractal dimension is relatively smooth.
通过演化曲线可以看出,分形维数与损伤变量随应力的递增均呈非线性增加,但分维的变化较平缓;
After defining a logarithm damage variable and effective stress, we introduce a damage evolution equation at crack tip bytaking into account the physical mechanism of the development ofcavities.
本文在定义对数损伤变量和相应的有效应力之后,引入了一种考虑材料内部空穴演变的裂尖损伤演变方程。
The theoretical and experimental results show that the Damage variable is linear with equivalent strain and it is affected remarkably by the triaxiality stress ratio.
理论分析与实验结果表明,损伤变量与相当应变呈线性关系,并且其值受应力三轴变的显著影响。
The theoretical and experimental results show that the Damage variable is linear with equivalent strain and it is affected remarkably by the triaxiality stress ratio.
理论分析与实验结果表明,损伤变量与相当应变呈线性关系,并且其值受应力三轴变的显著影响。
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